植入医学器件的电能供给及电磁场仿真  

Power supply and electromagnetic simulation of implantable medical devices

作　　者：唐治德[1] 吴明鹏[1] 余小闯[1] 金幸[2] 张海波[1] 何志成[1] 

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044 [2]重庆大学输配电装备及系统安全与新技术国家重点实验室重,庆400044

出　　处：《重庆大学学报（自然科学版）》2010年第9期56-61,共6页Journal of Chongqing University

基　　金：国家自然科学基金资助项目(50877082);重庆大学输配电装备及系统安全与新技术国家重点实验室资助项目(2007DA10512709303)

摘　　要：利用生物皮肤的电特性,通过皮肤对体内植入式医学电子器件的电池进行充电展开研究。采用有限元法建立体导电能量传递数学模型,通过软件FEMlab3.3建立其场域数值模型,输入信号使用交流电压。在仿真中,进行了模型的频率特性测试,设计了4种不同形状的电极,并以圆柱形电极为例,分别改变电极截面面积和电极之间的距离来优化电极的形状与布局。仿真结果表明,在保证人体安全电流的前提下,体导电电流传递效率可达30%以上。It is studied how to charge the battery of the implanted medical device through the skin according to its bio-electrical characteristics.Energy delivery model of volume conduction is created by FEMlab 3.3（Finite Element Model Lab）,using AC voltage as the input.In simulation,the frequency characteristic of the model is tested,and then 4 different shapes of electrodes are designed.Taking cylindrical electrode for example,the shape and layout of electrode are optimized by changing the electrodes＇ cross-section areas and the distance between the electrodes.According to the simulation results,current transmitting efficiency can reach above 30% under the premise of ensuring human security.

关 键 词：体导电 植入医学电器 电磁场 能量传递 电能供给 

分 类 号：TP212.3[自动化与计算机技术—检测技术与自动化装置]